P.V. Narsimha rao was elected party leader on 29 th may 1991. what was the day of the week?

Options

A. Tuesday
B. Friday
C. Wednesday
D. Sunday

Answer

To determine the day of the week for 29th May 1991, we can follow these steps:

### Step 1: Identify the year and the date
We need to find out the day of the week for the date 29th May 1991.

### Step 2: Calculate the odd days for the complete year before 1991
We first look at the complete year 1990.

1. **Determine if 1990 is a leap year**:
- A year is a leap year if it is divisible by 4.
- 1990 is not divisible by 4, so it is not a leap year.

2. **Calculate the odd days in 1990**:
- Since 1990 is not a leap year, it has 365 days.
- To find the odd days, we divide 365 by 7 (the number of days in a week):
\[ 365 \div 7 = 52 \text{ weeks} \text{ and } 1 \text{ day (odd day)} \]
- Thus, there is 1 odd day from the year 1990.

### Step 3: Calculate the odd days for the ongoing year (1991) until 29th May
Now, we will calculate the odd days from January to 29th May in 1991.

1. **Days in each month**:
- January: 31 days → 31 mod 7 = 3 odd days
- February: 28 days (1991 is not a leap year) → 28 mod 7 = 0 odd days
- March: 31 days → 31 mod 7 = 3 odd days
- April: 30 days → 30 mod 7 = 2 odd days
- May: 29 days → 29 mod 7 = 1 odd day

2. **Total odd days from January to May**:
\[ 3 \text{ (Jan)} + 0 \text{ (Feb)} + 3 \text{ (Mar)} + 2 \text{ (Apr)} + 1 \text{ (May)} = 9 \text{ days} \]
- Now, we find the odd days for these 9 days:
\[ 9 \div 7 = 1 \text{ week and } 2 \text{ odd days} \]

### Step 4: Combine odd days from both years
Now we add the odd days from 1990 and the odd days from 1991:
\[ 1 \text{ (from 1990)} + 2 \text{ (from 1991)} = 3 \text{ odd days} \]

### Step 5: Determine the day of the week
We can now determine the day of the week:
- If we assume that 1st January 1991 was a Tuesday (this can be verified or assumed for the sake of this calculation), we can count forward:
- 1 odd day → Wednesday
- 2 odd days → Thursday
- 3 odd days → **Friday**

Thus, 29th May 1991 was a **Wednesday**.

### Final Answer
The day of the week on 29th May 1991 was **Wednesday**.

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